A wonderful swimmer and a huge help to Didi Dolphin. If on any of his underwater book rescue missions he encountered the The Jellyfish, who were treacherous and not to be trusted, he would squirt his ink (like a squid can do) and make the waters so murky that any enemy or prying eyes would not be able to see what was going on… very clever !
Also the Coral Reefs were host to thousands such of prying eyes because of all the marine creatures who lived there. So, again, Orthoceras was very useful for providing a shield of cover.
Did you know … Orthoceras are, or were, real creatures, but now we can only see their fossils as they are, sadly, extinct.